Baltimore County police have arrested six people in connection with the slaying of William Porter, 49. He was shot at his Hess gas station in the 1600 block of Joppa Road on March 1. He died the next day at Shock Trauma.

Karla Louise Porter, 47, was taken into custody Saturday evening before her husband's funeral. She was denied bail on Monday.

Investigators said Karla Porter's brother, 53-year-old Calvin Lee Mowers, her sister 51-year-old Susan Datta, both from Essex, and three other men have been charged with first-degree murder.

Karla Porter initially told officials that a black man shot her husband, but police said cell phone records and other technology helped unravel the scheme.

Court records show Karla Porter told her nephew, Seamus Coyle, that she was having problems with her husband. Coyle told her that he had someone to take care of her problem -- a man named Walter Bishop.

Charging documents show that as early as December, Karla Porter had been trying to get the 37-year-old Bishop to kill her husband. She paid him $9,000 to do so, officials said.

The documents said Karla Porter used her cell phone the day of the slaying to lure her husband to the gas station at 3 a.m. on March 1. She then called Bishop, who drove to the gas station with several others. The charging documents say that Bishop shot Porter.

The documents said Porter's sister provided the weapon used in the slaying.

A motive has yet to be determined.

Charging documents said a witness told police that Karla Porter said her husband was abusive and that he wanted to move to Florida, but there are no police or court records indicating prior abuse.

A memorial service was held for William Porter Saturday night. He had owned the gas station for about 15 years.

The Baltimore County pretrial service said Porter and Bishop do not yet have lawyers.